Repository navigation
Expand file tree
/
Copy pathcef_task.h
More file actions
148 lines (131 loc) · 5.27 KB
/
Copy pathcef_task.h
File metadata and controls
148 lines (131 loc) · 5.27 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
// Copyright (c) 2013 Marshall A. Greenblatt. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the name Chromium Embedded
// Framework nor the names of its contributors may be used to endorse
// or promote products derived from this software without specific prior
// written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// ---------------------------------------------------------------------------
//
// The contents of this file must follow a specific format in order to
// support the CEF translator tool. See the translator.README.txt file in the
// tools directory for more information.
//
#ifndef CEF_INCLUDE_CEF_TASK_H_
#define CEF_INCLUDE_CEF_TASK_H_
#include "include/cef_base.h"
typedef cef_thread_id_t CefThreadId;
///
// Implement this interface for asynchronous task execution. If the task is
// posted successfully and if the associated message loop is still running then
// the Execute() method will be called on the target thread. If the task fails
// to post then the task object may be destroyed on the source thread instead of
// the target thread. For this reason be cautious when performing work in the
// task object destructor.
///
/*--cef(source=client)--*/
class CefTask : public virtual CefBase {
public:
///
// Method that will be executed on the target thread.
///
/*--cef()--*/
virtual void Execute() =0;
};
///
// Class that asynchronously executes tasks on the associated thread. It is safe
// to call the methods of this class on any thread.
//
// CEF maintains multiple internal threads that are used for handling different
// types of tasks in different processes. The cef_thread_id_t definitions in
// cef_types.h list the common CEF threads. Task runners are also available for
// other CEF threads as appropriate (for example, V8 WebWorker threads).
///
/*--cef(source=library)--*/
class CefTaskRunner : public virtual CefBase {
public:
///
// Returns the task runner for the current thread. Only CEF threads will have
// task runners. An empty reference will be returned if this method is called
// on an invalid thread.
///
/*--cef()--*/
static CefRefPtr<CefTaskRunner> GetForCurrentThread();
///
// Returns the task runner for the specified CEF thread.
///
/*--cef()--*/
static CefRefPtr<CefTaskRunner> GetForThread(CefThreadId threadId);
///
// Returns true if this object is pointing to the same task runner as |that|
// object.
///
/*--cef()--*/
virtual bool IsSame(CefRefPtr<CefTaskRunner> that) =0;
///
// Returns true if this task runner belongs to the current thread.
///
/*--cef()--*/
virtual bool BelongsToCurrentThread() =0;
///
// Returns true if this task runner is for the specified CEF thread.
///
/*--cef()--*/
virtual bool BelongsToThread(CefThreadId threadId) =0;
///
// Post a task for execution on the thread associated with this task runner.
// Execution will occur asynchronously.
///
/*--cef()--*/
virtual bool PostTask(CefRefPtr<CefTask> task) =0;
///
// Post a task for delayed execution on the thread associated with this task
// runner. Execution will occur asynchronously. Delayed tasks are not
// supported on V8 WebWorker threads and will be executed without the
// specified delay.
///
/*--cef()--*/
virtual bool PostDelayedTask(CefRefPtr<CefTask> task, int64 delay_ms) =0;
};
///
// Returns true if called on the specified thread. Equivalent to using
// CefTaskRunner::GetForThread(threadId)->BelongsToCurrentThread().
///
/*--cef()--*/
bool CefCurrentlyOn(CefThreadId threadId);
///
// Post a task for execution on the specified thread. Equivalent to
// using CefTaskRunner::GetForThread(threadId)->PostTask(task).
///
/*--cef()--*/
bool CefPostTask(CefThreadId threadId, CefRefPtr<CefTask> task);
///
// Post a task for delayed execution on the specified thread. Equivalent to
// using CefTaskRunner::GetForThread(threadId)->PostDelayedTask(task, delay_ms).
///
/*--cef()--*/
bool CefPostDelayedTask(CefThreadId threadId, CefRefPtr<CefTask> task,
int64 delay_ms);
#endif // CEF_INCLUDE_CEF_TASK_H_